NTI FTVN Boiler Service in Greater Vancouver

Want a straight answer for your home? Call (604) 359-1081 or request a free written quote.

What Is the NTI FTVN Series II?

The NTI FTVN Series II is a wall-hung, gas-fired condensing boiler built around a stainless steel fire-tube heat exchanger. NTI (NY Thermal Inc.) is a Canadian manufacturer based in Saint John, New Brunswick, and the FTVN line was designed with Canadian heating conditions in mind — which makes it a natural fit for Metro Vancouver's long, damp heating season. The series is offered in two configurations: combi models that provide both space heating and on-demand domestic hot water from a single wall-hung unit, and solo (heating-only) models that serve radiators, in-floor heating, hydronic air handlers, or an indirect hot water tank.

Like other modern fire-tube condensing boilers, the FTVN operates in the mid-90s AFUE class and modulates its firing rate to match the heating load, rather than cycling on and off at full fire. That modulation matters in Greater Vancouver, where shoulder-season days in Burnaby, Vancouver, Richmond and the North Shore often call for only a fraction of the boiler's full output. A properly set up FTVN spends most of the year running low and quiet, condensing flue gases and recovering heat that older cast-iron boilers simply sent up the chimney.

• Combi versions: space heating plus tankless-style domestic hot water in one unit — popular in Vancouver condos, townhomes and smaller detached homes
• Solo (heating-only) versions: dedicated hydronic heat, often paired with an indirect tank for high hot-water demand households
• Stainless steel fire-tube heat exchanger with condensing operation in the mid-90s AFUE class
• Wall-hung, compact footprint — well suited to Metro Vancouver mechanical closets and tight utility rooms
• Vents in inexpensive PVC/CPVC or polypropylene per the installation manual, with a condensate drain required

Signs Your FTVN Needs Repair

FTVN boilers are generally reliable, but like any condensing boiler in our coastal climate they show predictable symptoms when something drifts out of spec. Call CANRO if you notice any of the following:

• The display shows a fault or lockout code and the boiler will not restart, or restarts and locks out again
• No heat, or heat in some zones but not others — often a circulator, zone valve or control issue rather than the boiler itself
• Combi models: lukewarm or fluctuating domestic hot water, or hot water that cuts out mid-shower
• Short cycling — the boiler fires, runs briefly, shuts down, and repeats every few minutes
• Gurgling, kettling or banging noises from the boiler or piping
• Water on the floor under the unit — could be a relief valve discharging, a condensate leak, or a heat exchanger gasket issue
• Pressure gauge repeatedly dropping below roughly 12 psi or climbing near the relief valve setting
• Rising gas bills without a change in how you heat your home
• The condensate line freezing or blocking during a cold snap, which will shut a condensing boiler down

During Lower Mainland cold snaps — the handful of weeks each winter when arctic outflow pushes temperatures below freezing — small pre-existing problems tend to become no-heat calls, because the boiler is finally being asked to run at high fire for hours at a time. If your FTVN has been showing warning signs, it is far cheaper to have it diagnosed in October than to join the emergency queue in January.

FTVN Repair & Diagnostics

CANRO's Red Seal certified gasfitters diagnose FTVN faults methodically rather than guessing at parts. A typical diagnostic visit includes reading the fault history from the boiler control, checking gas supply pressure, performing a combustion analysis at the flue, inspecting the ignition and flame-sensing components, verifying system water pressure and expansion tank charge, and confirming the condensate trap and drain are clear. On combi models we also check the domestic hot water plate exchanger and flow sensor, since scale build-up from hard-water fixtures or debris in the plate exchanger is a common cause of lukewarm water complaints.

We do not publish flat-rate repair prices because condensing boiler faults vary too much for an honest one-size number. Instead, you pay for a diagnostic visit, we identify the actual fault, and you receive a free written quote for the repair before any work proceeds. No surprises, no pressure.

Same-day repair appointments are available across Greater Vancouver — Burnaby, Vancouver, New Westminster, Coquitlam, Port Coquitlam, Port Moody, Richmond, Surrey, Delta, North Vancouver, West Vancouver, Langley and the Tri-Cities. After-hours service is available during heating season for no-heat and no-hot-water situations.

FTVN Parts Replacement in Metro Vancouver

One advantage of servicing NTI equipment in BC: NTI is a Canadian brand with established wholesale distribution in the Lower Mainland, so most common FTVN components can be sourced locally rather than waiting on cross-border shipping. CANRO stocks universal hydronic components on our service vehicles and sources NTI-specific parts through Metro Vancouver suppliers, which means many repairs are completed same-day or next-day.

Parts we regularly replace on FTVN Series II boilers include:

• Gas valves — replaced and then verified with a combustion analyzer, never adjusted by eye
• Ignitors and flame sensors/ionization probes — the most common cause of intermittent ignition lockouts
• Heat exchangers — repairable under warranty in many cases; we assess whether replacement makes sense versus a new boiler
• Circulator pumps — boiler-mounted and external system pumps, including upgrades to variable-speed ECM circulators
• Pressure relief valves (PRVs) — a dripping PRV is never something to ignore or cap off
• Expansion tanks — a waterlogged expansion tank is behind many pressure-swing and PRV-drip complaints
• Combustion fans/blowers — noisy bearings or fan fault codes usually mean the blower is on its way out
• Sensors — supply, return, outdoor reset, flue and DHW sensors that drift and cause erratic operation
• Control boards and displays — diagnosed properly first, since boards are often blamed for faults that are actually wiring or sensor issues
• Condensate traps, neutralizers and drain components — critical in condensing boilers and frequently neglected
• Combi-specific parts: domestic hot water plate heat exchangers, flow sensors and diverter/three-way valves

For any part replacement we quote in writing after diagnosis. If your FTVN heat exchanger is still within NTI's warranty coverage, we will tell you — an honest assessment sometimes means a warranty claim rather than a bill.

FTVN Installation & Replacement

If you are replacing an aging mid-efficiency or cast-iron boiler, the FTVN Series II is a strong candidate for Metro Vancouver homes: compact, quiet, efficient, and backed by Canadian manufacturer support. CANRO installs both combi and solo FTVN models, and we size every installation with a proper heat-loss calculation rather than simply matching the nameplate of the old boiler — most older Vancouver boilers were significantly oversized, and an oversized condensing boiler short cycles and never reaches its efficiency potential.

A CANRO FTVN installation in Greater Vancouver includes:

• Heat-loss calculation and combi vs. solo + indirect tank assessment based on your hot water demand
• Technical Safety BC gas permit pulled for every job — no exceptions
• Correct venting in approved materials with proper slope and termination clearances for our wet coastal climate
• Condensate drainage with a neutralizer where required, routed to avoid freezing during cold snaps
• System flush and cleaning of existing piping, plus a magnetic filter to protect the new fire-tube heat exchanger
• Outdoor reset setup and control commissioning so the boiler actually condenses instead of running at old-boiler temperatures
• Combustion analysis at commissioning, with a printed record
• Full walkthrough of the controls, pressure gauge and what a normal display looks like

Typical investment: boiler installation runs $6,500–$14,000+ and full boiler replacement runs $7,500–$15,000+, depending on model, venting complexity, piping changes and whether an indirect tank is added. Every project gets a free written quote with a fixed price before work begins.

Annual Maintenance for NTI FTVN Boilers

Condensing boilers are not install-and-forget appliances, and NTI's warranty terms — like most manufacturers' — expect regular maintenance. In Metro Vancouver's climate the condensate system works hard for eight or nine months a year, and a neglected condensate trap or a fouled heat exchanger is the root cause of a large share of the FTVN faults we see.

A CANRO annual tune-up on an FTVN includes:

• Inspecting and cleaning the burner and fire-tube heat exchanger as needed
• Cleaning the condensate trap and verifying the drain and neutralizer are flowing
• Combustion analysis and adjustment to manufacturer specification
• Checking ignition components and flame signal strength
• Verifying system pressure, expansion tank charge and PRV condition
• Inspecting venting for sag, damage, blockage and correct termination
• Checking pump operation, zone valves and control settings including outdoor reset
• On combi models: checking DHW output temperature stability and flow sensor operation
• Reviewing fault code history for early warning signs

Book maintenance in late summer or early fall — before the first cold snap fills the schedule with emergency calls.

Common FTVN Fault Behaviour

The FTVN control displays fault codes when it detects a problem, and those codes are the starting point of any diagnosis — but a code tells you what the boiler saw, not necessarily what caused it. Rather than list code numbers you may misread, here are the fault patterns we most often diagnose on FTVN Series II boilers in Greater Vancouver:

If your FTVN is locked out, note the code on the display before resetting it, and if it locks out a second time stop resetting and call us — repeated resets on an ignition fault can mask a developing gas or combustion problem.

Cost Guidance, Rebates & Financing

For repairs and parts we charge a diagnostic visit and then provide a free written quote — we do not quote repair prices over the phone because guessing helps no one. For new equipment, boiler installation runs $6,500–$14,000+ and boiler replacement runs $7,500–$15,000+ depending on scope.

On rebates: the Canada Greener Homes Grant closed to new applicants in 2024, but the Canada Greener Homes Loan (interest-free financing for eligible retrofits), CleanBC programs and FortisBC rebate offers remain active, and high-efficiency condensing boilers like the FTVN can qualify depending on the current program rules. Program criteria and amounts change, so we confirm what your specific project qualifies for at quote time rather than promising numbers that may be out of date. CANRO also handles the Technical Safety BC permit and can point you to financing options if you prefer to spread the cost of a replacement.

Why CANRO for Your NTI FTVN

CANRO Heating & Cooling is an independent licensed contractor — we are not tied to any single brand, which means our advice on repairing versus replacing your FTVN is based on the boiler in front of us, not a sales quota. We have served Metro Vancouver since 1999 from our shop at 7325 6th Street, Burnaby.

• Technical Safety BC gas licence LGA0043870 and boiler licence LBP0046450
• Red Seal certified gasfitters
• WorkSafeBC coverage and liability insurance
• 4.9-star rating from 85+ Google reviews
• Same-day and after-hours service across Greater Vancouver
• Diagnostic visit plus free written quote — no commission-driven upselling
• Local parts sourcing for NTI equipment through Metro Vancouver suppliers

Call (604) 359-1081 or email info@canroheat.ca to book FTVN service anywhere in Greater Vancouver.

Frequently asked questions

Part of the CANRO NTI boiler services hub — see every related service there.

Reviewed by the CANRO Heating & Cooling service team — July 06, 2026. Technical Safety BC gas licence LGA0043870 · boiler licence LBP0046450 · Red Seal certified · WorkSafeBC and liability insured · 4.9★ from 85+ Google reviews · serving Metro Vancouver since 1999 · (604) 359-1081.